How to choose snails?

1. Oncomelania must be alive. Oncomelania usually exposes its body and tentacles. When a finger touches, the snail will retract. A layer of liquid also slipped on the outside of the shell.

2. If you eat snails outside or in a hotel, how can you tell? Generally speaking, cooked snail meat, if alive, will bulge out immediately at high temperature and will not shrink. So the snails on the table can only be seen from the appearance whether they are fresh or not. As long as the snail meat is exposed out of the shell and the screw cover does not fall off, pick out the snail meat with a toothpick and pull out the tail at the same time, and the snail will be fresh!